112 lines
3.7 KiB
Rust
112 lines
3.7 KiB
Rust
//! Phase-0-Spike: 80×25-Bildschirmpuffer, 16-Farben-Palette, Unicode,
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//! Tastatur- und Mausereignisse.
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//!
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//! Start: `cargo run -p tb-ui --example spike` — Beenden mit Esc.
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//! Getippte Zeichen erscheinen im Eingabebereich; Sondertasten und
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//! Mausereignisse werden in der Statuszeile angezeigt.
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use crossterm::event::{
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self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyEventKind,
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};
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use crossterm::execute;
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use std::io::stdout;
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use std::time::Duration;
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use tb_ui::screen::{ScreenWidget, TextScreen};
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fn testbild(s: &mut TextScreen) {
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s.set_color(15, 1);
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s.print(&format!(
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"{:^80}",
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"Terminal Basic — Phase-0-Spike (Esc beendet)"
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));
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// Farbraster: alle Vordergrundfarben auf allen Hintergründen
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for bg in 0u8..8 {
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s.set_color(15, 0);
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s.locate(3 + bg as usize, 3).unwrap();
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s.print(&format!("HG {bg} "));
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for fg in 0u8..16 {
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s.set_color(fg, bg);
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s.print(&format!(" {fg:2}"));
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}
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}
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// Unicode statt CP437: Rahmen, Umlaute, Symbole
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s.set_color(14, 0);
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s.locate(12, 3).unwrap();
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s.print("┌─ Unicode ────────────────────────────┐");
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s.locate(13, 3).unwrap();
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s.print("│ Äpfel, Öl, Übermaß, ß — ☃ ♥ ♦ ♣ ♠ π λ │");
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s.locate(14, 3).unwrap();
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s.print("└──────────────────────────────────────┘");
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s.set_color(7, 0);
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s.locate(16, 3).unwrap();
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s.print("Eingabe (Zeichen erscheinen hier):");
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s.locate(17, 3).unwrap();
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}
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fn status(s: &mut TextScreen, text: &str) {
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let (r, c) = (s.csrlin(), s.pos());
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let (row, width) = (s.rows(), s.cols());
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s.set_color(0, 7);
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s.locate(row, 1).unwrap();
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s.print(&format!("{text:<width$.width$}"));
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s.set_color(7, 0);
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s.locate(r, c).unwrap();
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}
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fn main() -> anyhow::Result<()> {
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let mut terminal = ratatui::init();
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execute!(stdout(), EnableMouseCapture)?;
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let (tw, th) = crossterm::terminal::size()?;
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let mut screen = TextScreen::with_size(tw as usize, th as usize);
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testbild(&mut screen);
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status(&mut screen, "Bereit. Tasten/Maus testen, Esc beendet.");
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loop {
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terminal.draw(|f| f.render_widget(ScreenWidget(&screen), f.area()))?;
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if !event::poll(Duration::from_millis(100))? {
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continue;
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}
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match event::read()? {
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Event::Key(k) if k.kind != KeyEventKind::Release => match k.code {
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KeyCode::Esc => break,
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KeyCode::Char(c) => {
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screen.print(&c.to_string());
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status(
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&mut screen,
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&format!("Taste: {:?} Modifier: {:?}", k.code, k.modifiers),
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);
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}
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KeyCode::Enter => screen.print("\n"),
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other => status(
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&mut screen,
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&format!("Sondertaste: {other:?} Modifier: {:?}", k.modifiers),
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),
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},
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Event::Mouse(m) => {
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status(
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&mut screen,
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&format!(
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"Maus: {:?} bei Spalte {}, Zeile {}",
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m.kind,
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m.column + 1,
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m.row + 1
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),
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);
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}
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Event::Resize(w, h) => {
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screen.resize(w as usize, h as usize);
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status(&mut screen, &format!("Resize: {w}x{h}"));
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}
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_ => {}
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}
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}
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execute!(stdout(), DisableMouseCapture)?;
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ratatui::restore();
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Ok(())
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}
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